Instagram babes and reality TV stars are among those to rock the trend.

But what happens when the everyday woman tries one on?

A mum got everyone giggling when she tested the saucy craze.

Laura, a blogger who posts on her Knee Deep in Life page, recently gave the cossies a go.

After being flooded with requests from her 667,000 Facebook fans, she fashioned a DIY one-piece out of an old T-shirt and her son’s pants.

And to add to the comedic effect, she placed the image next to a snap of Instagram influencer Bianca Ella.

While the model pouts as she poses in the body-baring swimsuit, Laura looks a lot more bemused.

A post shared by Knee Deep In Life (@knee_deep_in_life) on Aug 12, 2019 at 10:29am PDT

The mum posted the side-by-side comparison with the caption: “Google goals… poolside delight.

“When the reality is you'd be one sneeze away from b**** slapping the poor p***k next to you at the all inclusive bar on holiday with your areola because ain't nothing keeping those swinging sisters in place by the pool as you yell at the children to calm the f*** down or you're taking them to the kids club.

“I’m not sure what's more disturbing???

“The fact I've got four t**s or how far up my ass I managed to ram my sons pants?!?

“Either way I didn't expect the impromptu colonic as I clenched for this photo.”

A post shared by Knee Deep In Life (@knee_deep_in_life) on Jun 9, 2019 at 7:41am PDT

While the mum wasn’t keen on the underboob trend, she admits her hubby was “weirdly turned on” by it.

Her followers were equally appreciative that Laura tried out the cheeky swimsuit.

More than 4,600 of them have liked the snap of the blogger.

And hundreds of commenters admitted the post had left them in stitches.

One responder said: “You may be bonkers Laura, but we wouldn’t have you any other way!

“Thank you once again for making me laugh out loud after a challenging day.”

Another wrote: “You are hilarious, I love your humour.”

t’s not the first time Laura has tried out bizarre fashion trends.

Earlier this year, the mum rocked a crotch-skimming bikini.

While in February, she flashed her privates in a homemade version of viral body bow.

She also got Facebook users laughing when she tried on her version of Kim Kardashian’s X-rated dress.